TL;DR

Pay rate is the hourly wage a staffing agency pays directly to a temporary or contract worker for each hour worked on assignment. It is the cost base from which the agency calculates its bill rate — pay rate plus employer taxes, insurance, and margin equals what the client is charged. Pay rate is quoted to candidates during the offer process; bill rate is quoted to clients and is typically 30–65% higher.

Key Takeaways

• Pay rate is a pre-tax figure: the worker receives this amount before income tax withholding, and the employer (staffing agency) then adds its own separate payroll tax burden on top when calculating the bill rate
• For W-2 temporary workers in the US, the agency is the employer of record and pays FICA, FUTA, SUTA, and workers' compensation on top of the pay rate — costs the worker never sees directly
• In the UK, the equivalent term is "assignment rate" or "hourly rate"; under the Agency Workers Regulations, temporary workers are entitled to the same basic pay as permanent employees in the same role after 12 weeks on assignment at the same client
• Negotiating pay rate upward without a corresponding bill rate increase compresses the spread and can push a placement into loss once burden is factored in

FAQ

Q: What is the difference between pay rate and salary? A: Pay rate is an hourly figure used for temporary and contract workers and is typically calculated per hour worked — meaning no pay during gaps between assignments. Salary is an annualised fixed amount paid regardless of hours fluctuation, and salaried employees often receive benefits and paid time off included in that total. In staffing, temporary workers are almost always paid an hourly rate; the agency may or may not pass through benefits like health insurance or PTO accruals depending on contract terms.

Q: How do staffing agencies set pay rates? A: Agencies set pay rates based on local labour market conditions, the client's job description and skill requirements, benchmark data from sources like BLS Occupational Employment and Wage Statistics, and what the client is willing to pay as a bill rate (working backward from the client budget after covering burden and margin). Workers who have worked with the agency before, or who hold hard-to-source credentials, can typically negotiate a higher pay rate.

Q: Is pay rate the same as bill rate? A: No. Pay rate is what the worker receives; bill rate is what the client pays the agency. The bill rate is always higher — typically 30–65% above pay rate for light industrial and administrative temps — because it must cover employer-side payroll taxes (around 20–25% of pay rate), workers' compensation and liability insurance, overhead, and agency margin. A contractor paid $40/hr might carry a bill rate of $55–$65/hr to the client.

Why Pay Rate Matters Beyond the Paycheck

Pay rate anchors the entire economics of a staffing placement. Set it too low and the agency cannot attract qualified candidates in the current labour market. Set it too high without a corresponding bill rate increase and the spread compresses below the agency's minimum required margin. The pay rate decision is not just a candidate offer — it is a margin management decision that determines whether a placement is commercially viable before it is even filled.

The burden cost multiplier makes this more acute than it appears from the headline figures. A temporary worker paid $20 per hour generates employer-side costs that typically add 28–35% to the raw pay rate: FICA taxes (7.65% of gross wages), FUTA (6% on the first $7,000 annually, effectively minimal on an hourly basis after the first few weeks), state unemployment taxes (SUTA, which varies by state and experience rating), workers' compensation insurance (which varies significantly by job classification, from under 1% for clerical roles to 10–15%+ for construction), and general liability insurance. A $20/hr pay rate may produce a burden cost of $25–$27/hr before any overhead or margin is added. BLS Occupational Employment and Wage Statistics benchmarks for high-volume temp sectors: warehousing and storage occupations average $20.70/hr nationally; IT support specialists average $26.50/hr; registered nurses average $42/hr (all 2024 data).

When a client specifies a bill rate cap — often presented as "we need this role filled for no more than $35/hr all in" — the recruiter must work backward to determine what pay rate that budget supports. At a 40% markup (a common benchmark for light industrial), $35/hr bill rate supports a $25/hr pay rate before burden, which then needs to cover the 28–35% burden cost — leaving approximately $19.50–$20/hr available as take-home pay for the worker. If local market rates for the role are $22/hr, the client's budget cap creates a gap that will either need to be renegotiated or result in a compromised candidate pool.

How Pay Rate Is Determined

Pay rate determination involves four inputs that must be weighed simultaneously: prevailing market rate for the role in the specific geography, the client's budget cap translated back through the markup to a maximum viable pay rate, the worker's competing offers and expectations, and the agency's own historical pay rate data for similar placements.

Prevailing market rate is the floor. BLS OES data, internal comp surveys from the agency's own placement history, and benchmark data from sector-specific compensation sources (ITJobsWatch for UK IT rates, Robert Half's annual salary guide for professional roles) establish what comparable workers in the same geography are earning. Offering below this floor produces lower response rates to job advertising, higher candidate rejection rates at offer stage, and faster attrition during assignment as workers find better-paying alternatives.

The worked example: a manufacturing client requests 15 CNC machinists for a 6-month project. The client's all-in bill rate budget is $45/hr. The agency's standard markup for skilled trade manufacturing is 38%. Working backward: $45 / 1.38 = $32.60/hr pay rate before burden. Burden for skilled manufacturing (including workers' comp at 5% for machining) is approximately 32% of pay rate. So: $32.60 / 1.32 = $24.70/hr effective pre-burden pay rate cap. BLS data for CNC operators in the client's metro area: $28.50/hr median. The gap between the $24.70 cap and the $28.50 market rate means the client's budget is 14% below market. The recruiter presents this gap to the client with the data to support a bill rate conversation before posting the role.

Pay Rate vs Bill Rate

The distinction between pay rate and bill rate causes more practical problems in staffing operations than almost any other terminology gap — both in client communications and in candidate offers.

Pay rate is what appears on the worker's paycheck and is quoted to candidates during the offer process. It is the figure the worker will tell their friends they earn. Bill rate is what appears on the client's invoice and is quoted to clients during commercial discussions. These two figures should never be quoted to the wrong audience: telling a candidate the bill rate creates immediate confusion about why their paycheck does not match what was described, and disclosing the pay rate to a client who then calculates the markup implies the agency is earning more than the client expected, creating tension in the commercial relationship.

The relationship between the two is not a simple percentage — burden costs are layered in between. A candidate quoted $40/hr and a client invoiced $58/hr implies a $18/hr spread. Of that $18, approximately $11–$13 covers the employer burden costs on the $40 pay rate (FICA, SUTA, workers' comp, insurance). The net agency revenue from the placement is $5–$7/hr gross margin before overhead. Understanding this structure is essential for recruiters who are asked by candidates "why does the company pay $58 if I only get $40?" — the answer is not that the agency keeps $18; it is that $11–$13 of that spread is government-mandated cost, not agency profit.

Pay Rate in Practice

A recruiter at a light industrial staffing agency receives a new job order for 20 forklift operators for a distribution centre. The client's stated budget is $36/hr all-in bill rate. The recruiter's first step is not to post the job — it is to benchmark the local pay rate before committing to the order.

BLS OES data for the relevant metro area shows median pay for industrial truck and tractor operators at $21.80/hr. The agency's own database shows previous forklift placements in that zip code ranging from $20 to $23/hr over the past 18 months. Working back from the $36/hr bill rate at a 42% markup: $36 / 1.42 = $25.35/hr maximum pay rate before burden. With a burden rate of approximately 31% for light industrial in the state (FICA + SUTA at the agency's experience rating + workers' comp at 3.5% for warehousing + general liability): $25.35 / 1.31 = $19.35/hr effective pay rate cap.

The $19.35 cap is $2.45 below the BLS local median and $0.65 below the agency's historical floor in that geography. The recruiter contacts the account manager to flag the gap before posting. The client agrees to raise the bill rate to $38.50/hr, which translates to a pay rate range of $21–$23/hr. The role is posted at $21–$23/hr; 12 qualified candidates apply within 48 hours; all 20 positions are filled within the week. The pay rate conversation before posting prevents a failed fill that would have taken two weeks to diagnose.